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My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
I have read many posts on SO and the web regarding the keywords in my question title and learned a lot from them. Some of the questions I read are related to specific implementation challenges while others focus on general concepts. I just want to make sure I understood all of the concepts and the r...
How can I fill a div with an image while keeping it proportional?
...stretch an image to fill a <div> while keeping the image's aspect-ratio? — that is not entirely the thing that I want.
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How to calculate number of days between two given dates?
...1 = date(2008, 9, 26)
delta = d1 - d0
print(delta.days)
The relevant section of the docs:
https://docs.python.org/library/datetime.html.
See this answer for another example.
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UILabel with text of two different colors
...ange(10, 1)];
[label setAttributedText: text];
I created a UILabel extension to do it.
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How to check whether a string contains a substring in Ruby
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@Gary's advice holds if your goal is to minimize exceptions raised in this part of the code. That is not always the best goal. Generally if you expect a string at this point in the code and a value is nil instead, that implies something unexpected has occurred and an exception be...
Get value when selected ng-option changes
...to use ngChange and pass ngModel object as argument to your ngChange function
Example:
<div ng-app="App" >
<div ng-controller="ctrl">
<select ng-model="blisterPackTemplateSelected" ng-change="changedValue(blisterPackTemplateSelected)"
data-ng-options="blisterPack...
XDocument.ToString() drops XML Encoding Tag
Is there any way to get the xml encoding in the toString() Function?
8 Answers
8
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How to spawn a process and capture its STDOUT in .NET? [duplicate]
I need to spawn a child process that is a console application, and capture its output.
9 Answers
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Android Fragment handle back button press [duplicate]
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When you are transitioning between Fragments, call addToBackStack() as part of your FragmentTransaction:
FragmentTransaction tx = fragmentManager.beginTransation();
tx.replace( R.id.fragment, new MyFragment() ).addToBackStack( "tag" ).commit();...
Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...cts don't have time zone info by default, and without it, Python actually violates the ISO 8601 specification (if no time zone info is given, assumed to be local time). You can use the pytz package to get some default time zones, or directly subclass tzinfo yourself:
from datetime import datetime, ...